Help to migrate my config from dap to dape

[koprotk]

I have the following function that works fine in dap-mode

(defun dap-java-maven-debug-test-at-point ()
  "Debug the test at point using Maven launched by dap-mode."
  (interactive)
  (let* ((port (dap--find-available-port))
         (test-to-run (dap-java-test-method-at-point))
         (project-root (project-root (project-current)))
         (debug-command (format "mvn -Dmaven.surefire.debug=-agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=%s -Dtest=%s test"
                                port test-to-run))
         )
    (dap-debug
     (list :name (format "Debug %s" test-to-run)
           :enviroment-variables `(("TERM" . "xterm-256color"))
           :type "java"
           :request "attach"
           :hostName "localhost"
           :wait-for-port t
           :port port
           :cwd (lsp-java--get-root)
           :program-to-start debug-command))
    ))

I try to replace :program-to-start with :command "mvn" and :command-args "-Dmave...." but doesn't work, I tried to move it to compile, but same, I can solve the dap--find-available-port with :autoport but I can make the run as expected.

Help please 🙏

[koprotk]

I'm sorry to say that I tried everything, but it seems impossible to reproduce this feature in DAPE, so I was forced to split it into two: (With the help of eglot-java)

1. First, run the test in debug mode:

 (defun my/debug-mvn-test-method ()
    "Run the test on debug mode"
    (interactive)
    (if-let (project (project-current))
        (let ((default-directory (project-root project)))
          (compile (format "mvn  -Dmaven.surefire.debug=-agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=8000 -Dtest=%s test" (eglot-java--find-nearest-method-at-point))))
      (message "Not inside a know project."))
    )

2. Second, launch manually the dape with the following config (source: here)

  (add-to-list 'dape-configs
                 `(jdtls-extra
                   modes (java-mode java-ts-mode)
                   fn (lambda (config)
                        (with-current-buffer
                            (find-file-noselect (expand-file-name (plist-get config :program)
                                                                  (project-root (project-current))))
                          (thread-first
                            config
                            (plist-put 'hostname "localhost")
                            (plist-put 'port (eglot-execute-command (eglot-current-server)
                                                                    "vscode.java.startDebugSession" nil))
                            (plist-put :projectName (project-name (project-current))))))
                   :program dape-buffer-default
                   :request "attach"
                   :hostname "localhost"
                   :port 8000))

I tried to add 'compile to jdtls-extra but never attached the port to the debugger. Hopefully, this can be done automatically, but at this point, I can reach only so far.

I hope this discovery works for anyone.